Furnace wall



INVEN'IOR. 1 TH. VI/A/TE. G. W DAVE).

FURNACE WALL Filed Sept. 26. 1924 F. H. WAITE ET AL Jan. 26 1926.

A TTORNEY Patented Jan. 26, 1926.

UNITED s ar-res PATENT OFFICE.

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v Appltcationfiled September 26, 1924. Serial No.,740,106l

To all whom it concern:

Be it known that we, FRANK WArrn and GEORGE W. DAVEY, citizens of the United States, residing at Long Island City, in the county of Queens and State of New York, have invented certain new and useful Improvements in Furnace Walls, of which the following is a specification. 3

This invention relates to furnace walls and more particularly to that type which affords provision for allowing preheated air to'enter' the furnace at different points.

One of the objects of our inventlon is toprovide a furnace wall having; air spaces and built up of a series of superimpose blocks constructed and arranged to allow a free circulation of preheated air to enter the furnace wall embodying our invention.

designates the odi side wall or steel casing o furnace. 3

A further object of our invention is to provide a furnace wall of the above type including a novel and improved arrangement of the spacing tile so'that the tile may move freely under expansion and contraction of the inner wall of the furnace.

Another object of our invention-is the construction of a furnace wall including pro- VlSlOIl for supporting a spacing tile from the outside of the steel casing of the furnace so as to prevent the inner furnace wall from falling inwardly or outwardly.

To enable others skill d in the art to fullycomprehend the underlying features of our invention that they may embody the same in the various modifications in structure and relat on contemplated, drawings depicting a preferred form have been annexed as a part" ofthis disclosure and in such drawings, similar reference characters denote corresponding parts throughout allthe views, of

which,

Figure '1 is a cross section through the Figure 2 is a view taken on the line 2-2 of Figure 1. 'Fi re3isaview of Figure 1.

Referring now to the drawings, wherein like reference characters designate corresponding parts roughout allthe views, 5

a furnace and 6, 7 the superimposed bloc which are spaced from the outside wall forming an' air chamberB into which the preheated air is introduced from an exterior source not shown. The superimposed blocks an 0 .8110]! construction as to taken on the line 3-3.

vertical and horizontal passage of the preheated air-therethrou'gh from the air chamher 8 at different positions of the furnace wall, it being observed that the blocks when arranged, as shown "provide for the ports '9 for the passage of the preheated air into the furnace. Reference being had 'to figure '2 of the drawings, it will be observed that the ports 9 are disposed in staggered relation to each other so that the preheated air entering the chambers 8 may'fiow throughthe pas-- at different points into said furnace. At spaced intervals in the inner wall of the furd nace and particularly .the superimposed block s,*a spacingtile 10 is positioned thus ng the w linto a plurality of independent sections. a

'I has heretofore been the practice of con-.

necting the spacin" tile to the outer'wall of' the furnace 1n di erent manner to form .;a

- sages int-he inner wall through the blocks 7 rigid structure, when the furnace walls were examined, it was found that the spacing tile would break or split at. some c1point between the outer and inner wall-for e reason that no allowance was-madefor expansion and spacing tile 10 being built up with the super-.

imposed blocks,'.is constructed-so as to engage the inner face offlthe outer wall. The in l therefore-is prevented from falling outwardly, by reason of the spacing blocks and at the same time, the inner wall is prevented from falling inwardly by reason of the anchors. The said anchorsalso permit of verwill be noted that the spacing tile lies flush with the inner face of the outer wall .5 so that while itis-properly supported, theextical expansion of the spacing tile 10. It

pansion and contraction of the blocks will not tend to fracture'the s acing tile, but on the other handpermit t e spacing tile to expand and contract-with the inner wall. In f furnace wall construction of thistype, where ks air chambers are necessary for the introduction of'the preheated air, the spacin .tile is probably the weakest part of the wa and it is only by constructing .the wall i'n such manner'as' to permit the tile to contract and expand relative to the cold outer wall thatthe objection and difficulty heretofore experienced has been successfully overcome. It will be realized that the shape and construction of the spacing tile may be varied-to suit the needs and occasion desired but we lay claim to the furnace. wall embodyin this 1 feature and not necessarily the particular formation of the spacing tile.

While we have illustrated and described my invention with some degree of particularity, we realize that in practice various alt'erationstherein maybe made. e therefore reserve the right and privilege of changing the form of the details of construction orotherwise altering the arrangement of the correlated parts without departing from the spirit of the invention or the scope of the appended claims.

Having thus described our invention,

what we claim as new and desireto secure by United States Letters Patent.-is:

1. A construction of the class described comprisi-n anouter wall, an inner spaced wall having passages extending therethrough, a spacing tile between the said outer and inner walls forming independent air chambers and means connecting the spacing tile with the outer wall to permit the admission of air to the respective chambers, said spacing tile being free to move with the inner wall under contraction and expansion.

2. A construction of the class described comprising an outer wall, an inner spaced wall of superimposed blocks, a spacin tile between the outer wall and inner wall, orming independent air chambers, and means anchoring the said spacing tile to the outer 7 wall and permitting the admission of air to the said chambers, said spacin tile being free to move with the innerwa 1 under contraction and expansion.

the spacing tile to permit the passage of preheated air to the air chambers,'said spacing tile being free to move relative to the outer wall under expansion and contraction.-

4. A construction oi the class described comprising an outer wall, an inner spaced wall of superimposed blocks having vertical and horizontal passages therethrough, a spacing tile between the outer wall and the inner 'wallforming independent air chambers, an air conduit extending through the outer wall and the spacing tile to permit the passage of preheated air to the said chambers, said spacing tile being free to move with the inner wall under expansion and contraction. c I i 5. A construction of the class described comprising an outer wall, an inner spaced wall of superimposed blocks, having passages therethrough, a spacing tile between certain of the blocks forming independent compartments, said spacing tile extending flushwith the inner surface of the outer wall, an air conduit extending through the outer wall and through the spacing tile to permit the passage of preheatedair to the said chambers, said spacing tile being free to move with the inner wall under expansion and contraction.

6.. A construction of the class described comprising an outer wall, an inner spaced wall, a spacing tile formingindependent air compartments between the outer wall and inner wall, an L-shaped anchor passing freely through the s acing tile and the outer wall connecting sai spacing tile in engage- I ment with the inner face of the said outer wall, said spacing tilefbeing 'free to-move vertically under contraction and expansion, sa'id anchor and spacing tile being adapted to prevent the inner wall from falling inwardly or out-wardly relative to the said outer wall.

In testimonywhereof-we aflix our signatures.

FRANK H. WAITE. [1,. 8.] GEORGE w. DAVEY. 1 s.] 

